Solve Linear Equations using Calculator App

Use the "Scientific" option in home screen of calculator app. To solve multiple linear equations, you need to first create a list of linear equations (in the form F=0) that you want to solve. For example, to solve following three linear equations -

6X + 2Y + 2Z = 4

3X + 6Y + 3Z = -9

6X + 2Y + 4Z = 8

The above three equations in the form F=0 are - 

6X + 2Y + 2Z - 4 = 0

3X + 6Y + 3Z + 9 = 0

6X + 2Y + 4Z - 8 = 0

Input expression 6X + 2Y + 2Z - 4 and use "Add To List⇓" option. Then input 3X + 6Y + 3Z + 9 and 6X + 2Y + 4Z - 8 and similarly add them to the list.



Select all the three equations and use the "Solve Multiple Eqs" option and select the "Linear eqs of form F=0" option. Select the three variables X, Y and Z used in equations.



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